| 摘要 |
PURPOSE:To prevent a looseness or a rattle between a mold and a chuck even if the mold is frequently exchanged by a method wherein a support arm provided on a rotating arm consists of a body part extending to the other end of a mold and a front arm part, and a bearing part for bearing the mold is provided on the front arm part. CONSTITUTION:A rotating arm 3 mounted on an end part of a bearing base 2 is provided with a chuck 6 for chucking a mold 4 by fitting into a fitting hole 5 of the mold 4 and also provided with a support arm 7 in parallel to the mold 4. The support arm 7 comprises a front arm part 9 rotatably mounted on a top of a body part 8 and provided with a support stock 11, that fits into a fitting hole 10 of the mold 4 for serving as a bearing part for the mold 4. In this manner, the mold 4 is fitted with the hydraulic chuck 6 of the rotating arm 3, furthermore being chucked by the support arm 7 on the opposite side. As a result, when the rotating arm 3 is rotated into a vertical state to be fitted to a tail stock 13, a weight is not applied only to the hydraulic chuck, and a claw of the chuck is prevented from being early broken. |
